Month: May 2019


Internal resistance of moving is the viscosity of the lubricant or lube oil. Generally in case of lubricant viscosity is measured by a unit less parameter named viscosity index. Actually it is the major oil life indicator of lubricants. Viscosity Index: Viscosity index is nothing but a unit less measuring system of change of viscosity with temperature change. To get clear vision about it have to know first, what is viscosity? Actually it is internal resistance of fluid by which …

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